Frontend Developer for Sports Card Website

I’m building a sports card trading/marketplace website for a client and need a developer to help improve the existing frontend and build out core market features. The project involves enhancing user experience and adding new functionalities to the platform. The ideal candidate should have experience in web development, PHP, and HTML5. • I have a working UI/frontend already in place, but it needs refinement and improvement • Stack is still being finalized — likely Shopify headless (Storefront API) or a custom React/Next.js setup, so flexibility here is a plus